Solar Panels are a common type of EU Generator used in IndustrialCraft2. They require little effort to set up correctly, and each one consistently provides 1 EU/t on clear, sunny days, and as long as the more expensive GregTech recipe is not enabled, they're also fairly affordable. Because of the low power generation, you are encouraged to use Ultra-Low-Current Cable to wire these to whatever they are powering. The interface contains a slot for slowly charging something (like a battery, jetpack, etc.), and below that a small box that glows yellow during the daytime to indicate whether the Solar Panel sees sunlight and is therefore generating power currently or not. It should be noted that although technically the night on Minecraft only lasts 7.5 minutes, solar panels only produce power during the day which lasts 10 minutes (half of the day/night cycle) because dusk and dawn are treated as non-generation time. This means that when planning to have enough power to run throughout the night one should double the average power required. Industrial-Craft tutorials in minutes.